"There are three cats! One of them (orange tabby) was meow-ing outside our room and we went out to pat it. Staff were very friendly. The room was large for the three of us, and the futons were comfortable.
There is a small AEON mall nearby. Inside there's a supermarket and DAISO. The supermarket closes at 10pm, so you don't have to worry about supper. The prices are pretty reasonable too! Cheaper than the conbini.
It's a 20min walk to Yufuin Floral Village, but it's a very nice walk (provided you walk in the morning, before the sun coomes out). We went in August, and the heat was unbearable at times. There are bus options too, but the frequency is limited.
They offer stargazing tour as well. It was 30 min of travelling (to and fro) and 10 min of stargazing, for 1000yen. Not worth imo, because the tour guide/driver will be using a torchlight to help participants take photos (because the location offered a nightview of Yufuin below). We couldn't see the stars very well because of this, which defeats the purpose of the tour."